Can someone educate me on 4-speeds

The first thing to do is determine "what it is."

If it is a so called "truck" four speed, then you won't be putting it into any car, and the bell, I believe, is equally useless.

The only other possibility is that it's either an "overdrive" 4 speed, or that someone has actually swapped in a conventional "car" (A-833) 4 speed. In either case, the transmission will have a separate shifter, whereas the "truck" 4 speed will have the shift lever integrated into the top plate of the gearbox.

If it IS either a "car" A-833 or a factory "overdrive" A-833, it will NOT have a "granny gear."